/*
 * Copyright (c) 2007-2012, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * $Id: ExtensionsProvider.java,v 1.1.2.1 2005/08/01 01:30:08 jeffsuttor Exp $
 */
package com.sun.org.apache.xpath.internal;

import java.util.Vector;

import com.sun.org.apache.xpath.internal.functions.FuncExtFunction;

/**
 * Interface that XPath objects can call to obtain access to an
 * ExtensionsTable.
 *
 */
public interface ExtensionsProvider {
    /**
     * Is the extension function available?
     */

    public boolean functionAvailable(String ns, String funcName) throws javax.xml.transform.TransformerException;

    /**
     * Is the extension element available?
     */
    public boolean elementAvailable(String ns, String elemName) throws javax.xml.transform.TransformerException;

    /**
     * Execute the extension function.
     */
    public Object extFunction(String ns, String funcName, Vector argVec, Object methodKey) throws javax.xml.transform.TransformerException;

    /**
     * Execute the extension function.
     */
    public Object extFunction(FuncExtFunction extFunction, Vector argVec) throws javax.xml.transform.TransformerException;
}
